As Harry Potter and the Cursed Child starts its previews, Daniel Radcliffe has revealed he's still "not sure" whether he should see the new play.

The new production at the Palace Theatre in London will focus on Harry Potter's youngest son, Albus Severus, as he struggles to deal with his dad's legacy while living in his shadow.

Talking to E! News, Radcliffe said: "It would be a weird one. I could be completely wrong in this, but I feel like if I went to see it that night, there's going to be a lot of Harry Potter fans there in the audience obviously and would that then become a thing?